当前质谱分析技术发展主要依赖于在线、实时、原位和低损耗、非破坏质谱学方法的应用。直接离子化的出现,使复杂样品中的痕量待测物无需进行样本处理,这在一定程度上使质谱分析的效率得到有效提高,而且也实现了对复杂样品进行快速质朴分析。本文主要分析直接离子化质谱分析技术的工作模式和相关原理,并对其在各种复杂样品中的应用进行详细的分析。 The current development of mass spectrometry technology relies mainly on the application of online, real-time, in-situ and low-loss, non-destructive mass spectrometry methods. The direct ionization makes it possible to trace the analyte in complex samples without sample processing. This effectively improves the efficiency of mass spectrometry analysis to a certain extent, and also enables the rapid and simple analysis of complex samples. This paper analyzes the working principle and principle of direct ionization mass spectrometry, and analyzes its application in various complex samples in detail.